John best



@uitrit faire @anni filtra.'

JOHN Bit-suor LANCASTER, PENNSYLVANIA;

Lesers Paten; No. 60,990, dated January 8,- 1867. i

FURNAGE FOR'STEAM BOILBRS.

T0 ALL WHOM Try-MAY CONCERN:

Beit known that I, JOHN BEST, of Lancaster, yin the county of Lancaster, and' State of Pennsylvania, have invented a new and useful improvement on Steam Boilers; and I do hereby declare that the following is afull and exact description ofthe construction and operation of the same, reference being had to the accompanying drawings, making a part of' this specification, in whieh- Figure lis a perspective view ofI my boiler, showing the iront and side, with lthe doorsD of the gas- `chamber C open, to show the tubular lues, as also the doors G of the fire-box, to showthe grate.' v

Figure `2, a perspective 'outline or descriptive View of the same, showing the rear partitionI J, or chamber around, the vent or smokepipe K, and rear ofthe boiler, Sto. l

Figure 3 is a horizontal section to show the manner of connecting the gas-chamber with the boiler in front; also the partitioned or walled chambers M I, .in the rear of the boiler and walls of .the furnace A.

Figure 4 is a front elevation of the same. l Y

The nature of my invention consists in providing a gas-burner Vyor chamber over the furnace or fire-box, iny frontof the boiler, so connected with the boiler that a new chamber can be put on when burned out, withouty otherwise affecting the boiler, and by preventing the escape of the heat into the stack by a check-wall, so as to drive the heat, when it has passed lunder the surface of the boiler, to one side, as .it rises, and drawing it forward through the tubular iiues on the water level, into the gas-chamber, where the gaseous product of combustion' is ignited, augmenting the heat, and carried through the tubular hues on the other side of the central partitionl in the boiler, (alsd on the water leveh) back into the veut-chamber, lfrom whence it escapes into the stack, thereby increasing both the heat and draught and greatly economizing fuel, it being thoroughly utilized in causing the heat to circulate on the water level through the gas-consuming chamber, which has now'been tested asa fact, no longerl resting upon theory, which is equally well established in the consumption of the gaseous products.

To 1enable others skilled in the art to make auduse my invention, I will proceed to; describe its construction and operation. l l

I construct my boiler on the ordinary plan 'of steam boilers, allowingthe front plates of *its circumference to project beyond the-heads. few inches, theilange around'thc head being turned inwards under'the outer cylinder forming the boiler. 'lo this projecting rim ofthe saure I attach the portion constituting the chamber C, say about the one-eighth or one-ninth of the entire length of the boiler proper, in depth, (this may vary with the length and diameter of boilers, however,) this being 'properly secured over and toth'e same, an'd closed in, front by partial heading, N O, iig. 4, connected centrally by a stout iron rod oriixture, to which the doors D are hinged to close the intermediate space between the partial heading N O of the gas-,chamber C, which thus comes in front of and is open to the head and ilues E E in the boiler, and directly over the anterior portion of the hrebox F in the furnace A. The hues E E are divided by a` vertical partition, P, in two separate series, from each other. The furnace-flue L admits the heat from the hre-box I to 'pass under .the'boiler to the watenlevel in its rear, where it is deflected to one side,l say into chamber M, byva wall or partition, I J, shutting it oii` from the iiue Ii, and thus made to pass through the iiues vE on one side of the vertical partition P, through its `series to the water level, entering the gas-chamber C heated to redness bythe iire directly under it, igniting the gaseous products which would otherwise escape with the smoke'into the' stack, and thus the utility of itsy combustion, as so much additional fuel, lost; but by thesemeans thelcombustion, is secured vand the heat greatly augmented. with a consequent increase of draught. It is again carried on the water level through the series of ilues E on the other sideof the vertical partition P, back to the rear of the boiler,l into the chamber I surrounding the iiue K, that conveys it into the stack.' rlhe novelty andutilityconsist in the mode of conducting the heat and consuming the gaseous.' products of the fueh'audwhile it utilizes all the fuel, the heat is merc judiciously 'appliedou both' sides to the `water level within the iiues.

I am aware that tubular'boilers are in usein whichthe lheat is carried back under the boiler. to the water level, but it is returned, eithernthroughthe lower series of iiues and passes back through the upper, or rst. through the upper series, and then'on the drop-hue principle carried'baok througlipthve lower series .divided horiiontally, while AI divide mine `vertically andcarry the heat both ways on the same plane and water substantially in the manner speeiiied.

level through the iues, both forward anfiback again, by'which arrangement itself I have. en increased benefit; independently of the further combustion and increase of heat obtained by the use of -my gas-burning chamber C, thereby, jointly, greatly increase the eiiiea'cy of the heat, als Welles a great saving in the consumption of fuel to generate the same amount of steam.

I climthe prolongation of the outer cylinder B of the boiler beyond the fines, when closed with a. partial head, N O, and doors DD, so as to form a, chamber, C, directly over the front part o the furnace or fire-box F, constriicted in the manner and for the purpose specified. v

Ialeo olairn the vertical partition?, in boilers, in combination With'apertiton or chamber, I M, for conveying the heet first under, then through, @series of ues E', on one side, onltle water 1eve l,a,nd returning it o'n the same plm1e,on the other side of'said partition P,.Ithrough the ues E 'tp the rear of the boiler,

JOHN BEST. Witnesses; at Asigning:

@me K. FRAILEY,

JAooB Smmirnm 

